Ion Density

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Ion Density

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In atmospheric electricity, the number of ions per unit volume of a given sample of air; more particularly, the number of ions of a given type (positive small ion, negative small ion, positive large ion, etc.) per unit volume of air. Also called ion concentration. </dd>
Measurement of ion density is used in determining efficiency of ionizers in ion engines. [[/a>|/a>]] </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use